DIAKHATÉ, François; PÉRACHE, Marc; NAMYST, Raymond; JOURDREN, Hervé

Metadatos

Licencia de uso del documento

DIAKHATÉ, François
DAM Île-de-France [DAM/DIF]
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

PÉRACHE, Marc
DAM Île-de-France [DAM/DIF]

NAMYST, Raymond
Laboratoire Bordelais de Recherche en Informatique [LaBRI]
Efficient runtime systems for parallel architectures [RUNTIME]
Efficient runtime systems for parallel architectures [RUNTIME]

Idioma

Document de travail - Pré-publication

Resumen en inglés

Thanks to recent advances in virtualization technologies, it is now possible to beneﬁt from the ﬂexibility brought by virtual machines at little cost in terms of CPU performance. However on HPC clusters some overheads remain which prevent widespread usage of virtualization. In this article, we tackle the issue of inter-VM MPI communications when VMs are located on the same physical machine. To achieve this we introduce a virtual device which provides a simple message passing API to the guest OS. This interface can then be used to implement an efficient MPI library for virtual machines. The use of a virtual device makes our solution easily portable across multiple guest operating systems since it only requires a small driver to be written for this device. We present an implementation based on Linux, the KVM hypervisor and Qemu as its userspace device emulator. Our implementation achieves near native performance in terms of MPI latency and bandwidth.< Leer menos

Metadatos

Compartir este ítem

Licencia de uso del documento

Efficient shared memory message passing for inter-VM communications

Idioma

Resumen en inglés

URI

Orígen

Centros de investigación